12386661 has 12 divisors (see below), whose sum is σ = 19212192. Its totient is φ = 7078008.

The previous prime is 12386657. The next prime is 12386663. The reversal of 12386661 is 16668321.

It is not a de Polignac number, because 12386661 - 2² = 12386657 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12386663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41985 + ... + 42278.

It is an arithmetic number, because the mean of its divisors is an integer number (1601016).

Almost surely, 2^12386661 is an apocalyptic number.

It is an amenable number.

12386661 is a deficient number, since it is larger than the sum of its proper divisors (6825531).

12386661 is an equidigital number, since it uses as much as digits as its factorization.

12386661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84280 (or 84273 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 12386661 is about 3519.4688519718. The cubic root of 12386661 is about 231.3758802354.

The spelling of 12386661 in words is "twelve million, three hundred eighty-six thousand, six hundred sixty-one".